"""Tests for analysis parser and metrics."""

from app.analysis.parser import compare_findings, parse_output


def test_parse_l1_output():
    output = "- null pointer\n- off by one"
    findings = parse_output(output, "L1")
    assert len(findings) == 2
    assert findings[0].defect_type == "null pointer"


def test_parse_l2_output():
    output = """- Type: null_pointer
  Lines: 5-6
  Explanation: missing guard"""
    findings = parse_output(output, "L2")
    assert len(findings) == 1
    assert findings[0].line_start == 5
    assert findings[0].line_end == 6


def test_compare_findings():
    findings = parse_output("- null_pointer", "L1")
    gt = [{"id": "1", "defect_type": "null_pointer", "line_start": 5, "line_end": 5}]
    metrics = compare_findings(findings, gt)
    assert metrics["detection_rate"] == 1.0
    assert metrics["coverage_rate"] == 1.0